Ps Version Is Not Caused By Positive Analysis Of Causes Of Failure On Ink

With the continuous development of printing technology

, developed and manufactured by China Positive PS version has been widely used in China. And concave version compared to other offset printing plates, PS version of a proofing process is simple, clear network, anti-Indian forces advanced features, but sometimes due to various adverse factors, it lost its effectiveness.

Print Network HC With Print Technology continues to evolve, develop and produce our own sun chart PS version Has been widely used in China. And concave version and so on Offset printing Plate Comparison, PS edition printing down process is simple, clear network, anti-Indian forces advanced features, but sometimes due to various adverse factors, it lost its effectiveness. PS version of the author as engaging in regeneration, to some printing factory and found that many manufacturers did not occurred on the PS version of ink failure, and failure occurs more than for the purchase of native PS version. This causes to this failure the following aspects from the analysis for reference.

1, PS version of storage and preservation of the environment

So far, nearly 20 domestic manufacturers of more than PS version, and some manufacturers also buy recycled PS version of the production base of aluminum version PS version. Standardization of the manufacturer Management And there are differences in scale of production, sales and stock of the progress there are differences. As the market economy, the printing factory wide channels to purchase PS version, and sometimes some kept buying more than one year of P3 version to use. PS version is not on the ink caused the main reason for failure. In addition, some manufacturers printed version of the warehousing or storage of PS plate burning plant is not suitable for PS version of the storage requirements, such as: indoor too wet, the light is too strong, high temperature, there is acid erosion. PS version of these situations will cause performance loss due to exposure do not develop normal, pro-poor ink performance, the machine must not easy on the printing ink or ink.

2, PS version and the photosensitive layer of sand present status of quality Some manufacturers print

PS version of the store bought not so long period, storage and use of environment in line with requirements, but will not appear on the ink failure, analysis of the reasons, I think the key is the PS version of the shape of electrolysis sand and sensitive projects layer of poor quality factors. Specific for the following reasons:

1. PS version of the wave front be sensitive coating on the aluminum substrate after Surface Treatment The production process, in which electrolysis process sand project is important, if not handled properly, and printing down to the next procedure, can affect print quality. Version of the base of the sands project by numerous peaks and valley convex form, the purpose of sand valley deep, bottom mostly in the same plane, from peak to valley wall is rather steep. Such a structure, can store enough water layout, printing plates on a blank part of the dirty, difficult, but convex peak too high, valley too deep, too steep wall is not easy to photosensitive liquid coating evenly. PS Edition, exposure imaging, the sand head protruding Feng Jian often caused by non-photosensitive layer on the inside cover difficult.

2. Photographic fluid emulsion with a once small, so that the alkali-resistant resin ink performance properties and pro-poor, and the photosensitive agent into the photosensitive material have poor alkaline gel, resulting in after developing Developer solution Erosion under the Photo section of the small outlets, fine text, fine lines are the first to be dissolved and reduced. If the extended development time, not only high-profile areas, halftone dot area have narrowed the region, and the PS version of the ink leading performance and reduced resistance to Indian forces.

3. The sensitive coating liquid storage sites with high temperature, air humidity, kept too long, if coated with the photosensitive layer, the poor performance of the pro-Mexico.

4. Photosensitive liquid Maturity is too low, too thin light-sensitive coating, coating the surface of a variety of reasons too smooth, not coated proofing imaging after imaging ink, this PS version of the machine is also easy on the printing ink.

Three, proofing and printing In addition to PS version

quality and conservation reasons, the proofing and printing operations, it can also cause bad or not dwell dwell failure.

1. Photo part of the original density is too low. Burn out when the original and the glass seal, and do not easily cause some graphic exposure after developing poor alkali resistance, light-sensitive layer of loss.

2. Overexposed, developing over skin, the higher the concentration of developer solution of sodium hydroxide, both will develop after the graphic part of the photosensitive layer thinning.

3. PS Exposure, developing after the ink is not mentioned, see the light place for too long, so that graphic part of the photosensitive layer are decomposed, the color light blue.

by: vovo

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